OsWRKY65 enhances immunity against fungal and bacterial pathogens in rice

• DOI: 10.1016/j.cj.2024.01.007
• Publication Date: 2024-02-09T08:40:43Z
• Authors: Seungmin Son; Giha Song; Suhyeon Nam; Jinjeong Lee; Duk-Ju Hwang; Eun-Jung Suh; Sang Ryeol Park
• Keywords: WRKY protein domain; Plant Immunity; Xanthomonas

Diverse bacterial and fungal pathogens attack plants, causing biotic stress severe yield losses globally. These are expected to become more serious as climate change improves conditions for many pathogens. Therefore, identifying genes conferring broad-spectrum disease resistance elucidating their underlying mechanisms provides important resources plant breeding. WRKY transcription factors affect growth responses. However, the functions of proteins remain be elucidated. Here, we demonstrated role rice (Oryza sativa) group III factor OsWRKY65 in immunity. localized nucleus acted transcriptional repressor. Genetic molecular functional analyses showed that increases pathogen Fusarium fujikuroi through downregulation GA signaling upregulation JA signaling. Moreover, modulated expression key confer susceptibility or Xanthomonas oryzae pv. enhance immunity against pathogen. In particular, directly bound promoter region OsSWEET13 repressed its expression. Taken together, our findings demonstrate enhances rice.